File:Proceedings of the Washington Academy of Sciences. Volume 3. Plate IX.png

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English: Carinella speciosa (=Tubulanus polymorphus; Nemertea: Palaeonemertea: Tubulanidae).
  • 1 – Transverse section through head in front of brain showing, particularly, position of enormously developed cephalic glands (cgl) and arrangement of cephalic nerves (nv). The cephalic glands are thickly placed both above and below the cephalic blood lacunae (bl), as well as around the rhynchodaeum (rh). The secretion from many of these glands is discharged near the lateral margins as indicated (dgl). Between the longitudinal and oblique muscles (lm), which lie in the deeper parts of the head, and the circular fibrous layer (cm), composed of muscles and connective tissue fibers underlying the integument (i), are numerous and very massive nerves (nv) which supply the head regions in front of the brain. The broad indentation of the ventral margin has no relation to the mouth which lies much farther back. A small individual. (×45)
  • 2 – Transverse, but somewhat oblique, section through head in region of brain. On the right of the section the brain (dg and vg) lies directly beneath the circular fibres (cm). External to the brain, and lying among the bases of the integumental cells, is the highly specialized cerebral sense organ (cso), connected with the dorsal ganglion (dg) by several small nerves (sn). The cerebral sense organ shows a conspicuous central canal. The rhynchodaeum (rh) has lost its fringe of gland cells, these being limited to the region anterior to it. The outer potion of the circular layer (cm) constitutes the basement membrane of the integument. In the region of the brain the circular layer splits into two sheets, one passing external to the brain and the other (ifl) internal. Other reference letters as above. A large specimen. (×25)
  • 3 – Transverse section through nephridial region showing positions, and one of the opening, of the nephridial canals. The lateral blood lacuna (bv) and the nephridial canal (nep) lie embedded in a band of loose connective tissue on each side. The opening of one of the efferent nephridial duct (nd) is seen on the right of the drawing. Other reference letters as indicated above (×25).
See also standard abbreviation.
Date
Source Coe, W. R. (1901). Papers from the Harriman Alaska Expedition. XX. Nemerteans. 3: 1–110. Plate IX in the Biodiversity Heritage Library
Author Wesley Roswell Coe (1869–1960)
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current00:19, 22 July 2014Thumbnail for version as of 00:19, 22 July 20142,099 × 3,388 (4.03 MB)Mithril (talk | contribs)=={{int:filedesc}}== {{Information |Description = {{en|1=Ribbon worms from Proceedings of the Washington Academy of Sciences, volume 3.}} |Source = Coe, W. R. (1901). Papers from the Harriman Alaska Expedition. XX. Nemerteans. '''3''': 1–110. [h...

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